Missing Start Time Answer Key

In this backward-thinking exercise, students are given the end time and the duration of an event and must determine the missing start time. This challenges students to apply subtraction skills to time measurement while reinforcing understanding of how hours and minutes interact. Working backward helps solidify comprehension of elapsed time and encourages logical problem-solving. Students develop flexibility in working with time values and improve their accuracy in computing across hour boundaries.

Curriculum Matched Skills

Mathematics – Subtracting Time to Find Start Time

Mathematics – Understanding Elapsed Time Relationships

Mathematics – Time Reasoning and Problem Solving

Mathematics – Working with Hours and Minutes

This worksheet is part of our Elapsed Time collection.